The Carrier P502-8305S is a heavy-duty 30 cubic inch liquid line filter drier engineered for critical moisture and acid removal in high-capacity HVACR systems. Designed with 5/8" ODF (sweat) connections, this OEM Carrier part features a solid core composed of 75% molecular sieve and 25% activated alumina. This specific desiccant blend provides superior refrigerant filtration by neutralizing hydrofluoric and hydrochloric acids while trapping solid contaminants down to 20 microns. With a 680 PSI maximum working pressure, it is fully compatible with R-134a, R-404A, and R-507A refrigerants. For veteran technicians, this drier is a standard requirement during compressor burnouts or system openings to prevent capillary tube icing and TXV plugging. The painted steel shell and solid copper connectors ensure a reliable braze joint, maintaining system integrity under high thermal stress and preventing long-term corrosion within the refrigerant circuit.

• High Desiccant Capacity: The 30 cu. in. volume provides exceptional moisture adsorption for larger residential and commercial split systems.
• Multi-Refrigerant Compatibility: Optimized for HFC and HCFC systems, ensuring versatility across varied HVAC service and repair applications.
• Debris Protection: Integrated 20-micron outlet pad prevents desiccant migration and traps metallic chips or carbon deposits.
• System Longevity: Effectively removes harmful acids that can degrade compressor motor windings and lead to premature failure.
• Durable Construction: Built to withstand high-pressure environments with a robust 680 PSIG rating and corrosion-resistant finish.

What is the proper installation orientation for this drier?
As a uni-directional liquid line drier, it must be installed with the flow arrow pointing toward the expansion device. Installing it in reverse will significantly increase pressure drop and reduce filtration efficiency.

When should the P502-8305S be replaced?
This part should be replaced whenever the system is opened for service, after a compressor burnout, or if a temperature drop exceeding 3°F is measured across the inlet and outlet, indicating a clogged filter drier.

Can this drier be used on the suction line?
No, this is specifically a liquid line filter drier. Suction line driers require different flow characteristics and pressure drop tolerances to protect the compressor inlet safely.

Item is Non Cancelable / Non Returnable

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.